<template>
  <div>
    <!-- 面包屑导航区 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图 -->
    <el-card>
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear='getGoodsList' @keyup.enter.native="getGoodsList">
            <el-button slot="append" icon="el-icon-search" @click='getGoodsList'></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click='goAddpage'>添加商品</el-button>
        </el-col>
      </el-row>

      <!-- table表格区域 -->
      <el-table :data="goodslist" border stripe>
        <el-table-column type="index"></el-table-column>
        <el-table-column
          label="商品名称"
          prop="goods_name"
          header-align="center"
        ></el-table-column>
        <el-table-column
          label="商品价格(元)"
          prop="goods_price"
          width="100px"
          align="center"
        ></el-table-column>
        <el-table-column
          label="商品重量"
          prop="goods_weight"
          width="75px"
          align="center"
        ></el-table-column>
        <el-table-column
          label="创建时间"
          prop="add_time"
          width="150px"
          align="center"
        >
          <template slot-scope="scope">
            {{ scope.row.add_time | dateFormat }}
          </template>
        </el-table-column>
        <el-table-column label="操作" width="130px" align="center">
          <template slot-scope="scope">
            <el-button
              type="primary"
              icon="el-icon-edit"
              size="mini"
            ></el-button>
            <el-button
              type="danger"
              icon="el-icon-delete"
              size="mini"
              @click='removeById(scope.row.goods_id)'
            ></el-button>
          </template>
        </el-table-column>
      </el-table>

      <!-- 分页区域 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[5, 10, 15, 20]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
        background
      >
      </el-pagination>
    </el-card>
  </div>
</template>

<script>
export default {
  data() {
    return {
      //查询的参数对象
      queryInfo: {
        query: "", //搜索关键字
        pagenum: 1, //当前的页码
        pagesize: 10, //每一页显示多少条数据
      },
      //商品列表
      goodslist: [],
      //总数据条数
      total: 0,
    };
  },
  created() {
    this.getGoodsList();
  },
  methods: {
    //根据分页获取对应商品列表
    async getGoodsList() {
      const { data: res } = await this.$http.get("goods", {
        params: this.queryInfo,
      });
      if (res.meta.status !== 200) {
        return this.$message.error("获取商品列表失败");
      }
      this.goodslist = res.data.goods;
      this.total = res.data.total;
    },
    //pagesize变化，触发函数
    handleSizeChange(newSize){
        this.queryInfo.pagesize = newSize
        this.getGoodsList()
    },
    //当前页码值发生变化
    handleCurrentChange(newPage){
        this.queryInfo.pagenum = newPage
        this.getGoodsList()
    },
    async removeById(id){
         const confirmResult = await this.$confirm('确定删除该商品信息?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).catch(err => err)

        if(confirmResult == 'confirm'){
            const {data:res} = await this.$http.delete(`goods/${id}`)
            if(res.meta.status !==200){
                return this.$message.error('删除失败，稍后再试')
            }
            this.$message.success('删除success')
            this.getGoodsList()
        }
    },
    //跳转到添加商品页面
    goAddpage(){
        this.$router.push('/goods/add')
    }
  },
};
</script>

<style lang='less' scope>
</style>